Metal-Free Photoinitiated, Controlled Cationic Polymerization of Vinyl Ethers Using Organic Iodides

IF 5.2 1区化学 Q1 POLYMER SCIENCE Macromolecules Pub Date : 2024-10-15 DOI:10.1021/acs.macromol.4c01382

Miao Chen, Jiale Xu, Guo Li, Wenjing Shu, Jiajia Li, Greg G. Qiao, Jian Zhu

引用次数: 0

Abstract

Metal-free cationic polymerization enables the preparation of polymers without residual metal contamination, eliminating the need for additional purification. Here, a metal-free photoinitiating polymerization of isobutyl vinyl ether (IBVE) was developed using organic iodide as the initiator precursor. PIBVE with controlled molecular weight and narrow molecular weight distribution (Đ < 1.10) was successfully obtained. The polymerization kinetics demonstrated a controlled reaction, and in situ chain extension was demonstrated. In addition, we introduced a latent initiator strategy, allowing to control the generation process of the initiator through adjustment of the light source and providing a facile way to tune the MWD of the obtained polymer.

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利用有机碘化物实现乙烯基醚的无金属光引发受控阳离子聚合反应

无金属阳离子聚合可制备无残余金属污染的聚合物，从而无需额外的净化处理。在这里，使用有机碘作为引发剂前体，开发了一种无金属的异丁基乙烯基醚（IBVE）光引发聚合法。成功获得了分子量可控、分子量分布窄（Đ <1.10）的 PIBVE。聚合动力学显示了反应的可控性，并证明了原位链延伸。此外，我们还引入了一种潜伏引发剂策略，可通过调节光源来控制引发剂的生成过程，并为调整所获得聚合物的分子量分布提供了一种简便的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Macromolecules 工程技术-高分子科学

CiteScore

9.30

自引率

16.40%

发文量

942

审稿时长

2 months

期刊介绍： Macromolecules publishes original, fundamental, and impactful research on all aspects of polymer science. Topics of interest include synthesis (e.g., controlled polymerizations, polymerization catalysis, post polymerization modification, new monomer structures and polymer architectures, and polymerization mechanisms/kinetics analysis); phase behavior, thermodynamics, dynamic, and ordering/disordering phenomena (e.g., self-assembly, gelation, crystallization, solution/melt/solid-state characteristics); structure and properties (e.g., mechanical and rheological properties, surface/interfacial characteristics, electronic and transport properties); new state of the art characterization (e.g., spectroscopy, scattering, microscopy, rheology), simulation (e.g., Monte Carlo, molecular dynamics, multi-scale/coarse-grained modeling), and theoretical methods. Renewable/sustainable polymers, polymer networks, responsive polymers, electro-, magneto- and opto-active macromolecules, inorganic polymers, charge-transporting polymers (ion-containing, semiconducting, and conducting), nanostructured polymers, and polymer composites are also of interest. Typical papers published in Macromolecules showcase important and innovative concepts, experimental methods/observations, and theoretical/computational approaches that demonstrate a fundamental advance in the understanding of polymers.